A device for sealing ampoules by drawing threads and filling with nitrogen.

By introducing a nitrogen protection structure and a wire drawing device in the ampoule drawing and sealing equipment, the problem of nitrogen protection that existing equipment cannot achieve has been solved. This enables continuous processing in a low-oxygen environment, meets the residual oxygen control requirements for drug packaging, and improves the packaging quality of ampoules.

CN224450549UActive Publication Date: 2026-07-03FUZHOU CORNERSTONE MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUZHOU CORNERSTONE MEDICAL TECH CO LTD
Filing Date
2025-07-24
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing ampoule sealing devices cannot achieve nitrogen protection between the bottle feeding process and the sealing process, resulting in high residual oxygen content in the finished product, which makes it difficult to meet the packaging requirements of pharmaceuticals with strict residual oxygen control.

Method used

An ampoule bottle drawing and nitrogen filling linkage sealing device was designed. Through the coordinated operation of the nitrogen protection structure and the drawing device, the inert gas protection treatment and thermoforming process can be carried out continuously. A low-oxygen environment is created by using a flame device and a gas outlet device, and nitrogen is injected through the needle and silicone gas tube to draw and seal the ampoule, which can meet the requirement of simultaneous sealing of twelve needles.

Benefits of technology

This effectively reduces the oxygen content inside the ampoule, keeping the residual oxygen level below 1%, thus improving the processing quality and packaging effect of the ampoule.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of ampoule processing technology, and specifically discloses an ampoule drawing, nitrogen filling and sealing linkage device, including a base, with a first pillar and a second pillar fixedly installed on the upper end of the base; a nitrogen protection structure is fixedly installed on the upper end of the first pillar; the nitrogen protection structure includes a first base plate, and a second base plate is fixedly installed on the upper end of the second pillar. Through the nitrogen protection structure on the base, the operator activates an angle motor to drive a first rotating shaft to drive a flame-spraying device to reciprocate and heat the bottle mouth, and uses a gas outlet device connected to the flame-spraying device through a combination plate, so that the gas outlet device moves synchronously with the flame-spraying device around the second rotating shaft as the center, and then treats the ampoule with nitrogen through the gas supply pipe and the gas outlet pipe to form an oxygen-free environment and inhibit the oxidation reaction during the high-temperature plastic forming process, thereby realizing the continuous operation of inert gas protection treatment and thermoforming process, and improving the processing quality of ampoules.
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